Revolution Per Square Minute (rpm/min, rev/min2) is a unit in the category of Angular acceleration. It is also known as revolutions per square minute, revolution/square minute, revolutions per minute per minute. This unit is commonly used in the UK, US unit systems. Revolution Per Square Minute (rpm/min, rev/min2) has a dimension of aT-2 where T is time. It can be converted to the corresponding standard SI unit rad/s2 by multiplying its value by a factor of 0.001745329252.

Other units in the category of Angular acceleration include Degree Per Square Second (°/s2), Radian Per Square Second (rad/s2), Revolution Per Minute Per Second (rpm/s, rev/min-s), and Revolution Per Square Second (rps/s, rev/s2).